Rigol DL3000 Series Programming Guide

Chapter 1 Programming Overview RIGOL
DL3000 Programming Guide 1-7
Questionable Status Register
The SCPI status system of the DL3000 is shown in Figure 1-2. The questionable status register monitors the
overall instrument condition, such as voltage/current control, OTP, OVP, OCP, and fan failure. You can send
the
:STATus:QUEStionable[:EVENt]? command to read the register. The definitions for the bits in the
questionable status register and the decimal value that corresponds to the binary-weighted value are
shown in Table 1-1.
Table 1-1 Definitions for the bits in the questionable status register and the decimal value that corresponds
to the binary-weighted value
Bit
Weight
Name
Description
0 1 VF
Voltage fault. Overvoltage and reverse voltage occurred; the OV
or the RV condition is removed.
1
2
OC
Overcurrent occurred.
2
4
RS
Remote Sense terminal connection
3 8 OP Overpower occurred.
4 Not used Not used This bit is always set to 0.
5
Not used
Not used
This bit is always set to 0.
6 Not used Not used This bit is always set to 0.
7 128 RUN Runs in List mode
8
Not used
Not used
This bit is always set to 0.
9 512 RRV
Remote Reverse Voltage. When reverse voltage occurs to the
remote terminals, the bit and VF bit are set. When the reverse
voltage is removed, the RRV bit is cleared, but the VF bit will not
be cleared.
10 1024 UNR
Unregulated. The input is unregulated. When the input has been
regulated, the bit is cleared.
11 2048 LRV
Local Reverse Voltage. When reverse voltage occurs to the input
terminals, the bit and VF bit are set. When the reverse voltage is
removed, the LRV bit is cleared, but the VF bit will not be cleared.
12 4096 OV
Overvoltage. When OV occurs, the OV bit and VF bit are set, and
the load is turned off.
13 8192 PS
Protection Shutdown. When overcurrent, overpower, or
overtemperature occurred, the load's input is turned off
(protection shutdown).
14 16384 VON
Voltage of sink current on. When the input voltage exceeds the
set Von value, the load starts to sink the current.
15
Not used
Not used
This bit is always set to 0.
 Event Register
The event register latches events from the condition register. Once the bit in the event register is set to 1,
the subsequent event changes are ignored. The event register is read-only. Once the bit is set to 1, it will
remain set and will not be cleared until cleared by running a query command (e.g. the
*ESR? command) or
the
*CLS command. When you send a query command to query the event register, a decimal value
(equivalent to the binary-weighted sum of all bits enabled in the register) will be returned.
 Enable Register
The enable register is both readable and writable. It defines whether to report the events in the event
register to the status byte register. The
:STATus:PRESet command will clear all bits in the enable register,
and the *PSC 1 command will make all bits in the enabled register cleared once the instrument is powered
on. To enable the events in the event register to be reported to the status byte register, write a decimal
value (equivalent to the binary-weighted sum of all bits enabled in the register) into the enable register.

Rigol DL3000 Series Specifications

General

Brand	Rigol
Model	DL3000 Series
Category	Measuring Instruments
Language	English